EOI

EOI may refer to:

Economics and commerce

 * Economic Opportunity Institute, an American public policy think tank
 * Export-oriented industrialization
 * Expression of interest

Other uses

 * European Ombudsman Institute
 * Belyayev EOI, a Soviet fighter aircraft
 * Eday Airport, in Orkney, Scotland
 * EOI Business School, in Spain
 * End of interrupt, a computer signal
 * Escuela Oficial de Idiomas, a Spanish network of language schools
 * Exhaust over intake, a type of combustion engine